Echelon ISI - Manual (Page 83)

81 ISI Programmer’s Guide
unsigned assembly) {
IsiMessage request;
msg_out_addr destination;
request.Header.Code = isiCtrq;
request.Msg.Ctrq.Control = command;
request.Msg.Ctrq.Parameter = assembly;
destination.nrnid.type = NEURON_ID;
destination.nrnid.domain = PRIMARY_DOMAIN;
destination.nrnid.rpt_timer = ENCODED_RPT_TIMER;
destination.nrnid.subnet = 0;
destination.nrnid.retry = RETRY_COUNT;
destination.nrnid.tx_timer = ENCODED_TX_TIMER;
memcpy(destination.nrnid.nid, neuronId, NEURON_ID_LEN);
IsiMsgSend(&request, sizeof(IsiMessageHeader)+sizeof(IsiCtrq),
REQUEST, &destination);
}
// State information for this enrollment controller.
// Using this state information allows the application to track
// completion of the entire process, and possibly to cancel out
// upon failure.
enum {
idle, // do nothing
opening, // open enrollment with host, awaiting response from host
enrolling, // enrolling members, awaiting responses from each member
creating // close enrollment and create connection
} controlState;
// Hold data to open enrollment on a host, enroll one member, and close
// enrollment with the host. The structure is filled in by the
// ConnectTwoDevices function and used with the when (resp_arrives) task.
typedef struct {
unsigned neuronId[NEURON_ID_LEN];
unsigned assembly;
} ControlledAssembly;
struct {
ControlledAssembly
host;
ControlledAssembly member;
} controlJob;
when (resp_arrives) {
IsiMessage response;
if (resp_in.code == isiApplicationMessageCode) {
memcpy(&response, resp_in.data, resp_in.len);
if (response.Header.Code == isiCtrp) {
// This is a controlled enrollment response
if (response.Msg.Ctrp.Success) {
// This is a successful response. See where we are
// and proceed to next step, if any:
switch(controlState) {
case opening:
// Host has opened; enroll member
ControlCommand(controlJob.member.neuronId, isiCreate,
controlJob.member.assembly);
controlState = enrolling;